Product Name: Trafag 8781 Hybrid Gas Density Monitor
Brand: Trafag
Product Code: 8781
Tags: Trafag
Hybrid Gas Density
Hybrid Density Monitor
Trafag 8781 Gas
8781 Monitor
8781 Hybrid Gas
Trafag 8781 Hybrid Monitor
8781 Gas Density
Trafag Gas Density Monitor
8781 Hybrid Density
Trafag Gas
8781 Hybrid Gas Monitor
Trafag 8781 Hybrid Gas Monitor
Hybrid Gas Monitor
Trafag Density Monitor
Trafag Gas Density
Hybrid Monitor
Trafag 8781
Monitor
Density Monitor
Hybrid Gas Density Monitor
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ApplicationsHigh voltage switchgearCategoryHybrid gas density monitorsDielectric strengthMicroswitch: 2 kV terminal groundOutput signal sensor: 250V against mass (EN60255-5)Measuring principleMechanical monitoring: Principle: Reference gas measurementElectronic monitoring: Principle: Oscillating quartz measurementVibrationAt min. 5 kPa distance from switch point no contact bouncingunder 20...100 Hz: 4 gMedia temperature-40°C ... 80°CShock50g/ 8 msAmbient temperature-40°C ... 80°CSensor1.4435, 1.4404, 1.4571 (AISI316L, AISI316)ProtectionIP67Output signalMechanical monitoring: floating change-over contactElectronic monitoring/sensor: analogue: 6.5...20 mA current loopOutput signal 6.5...20 mAcurrent loop 0...0.85MPa absolute SF6 @ 20°C 0...56.1 kg SF6 /m3Measuring rangeMechanical monitoring, measuring range absolute: 0...1.1 MPa (0...1100 kPa)Electronic monitoring/sensor, measuring range absolute: 0...0.85MPa SF6 @ 20°C 0...56.1 kg SF6 /m3